Moving Harmonics out of Harm's Way

摘要

Are harmonics refusing to jibe with the harmony of a facility's power flow? In the old days of predominantly linear loads, harmonics were a natural occurrence that didn't cause problems because with normally balanced, three-phase AC systems that have nondis-torted waveforms, the harmonic currents got cancelled out. However, along with advances in technology has come the proliferation of nonlinear loads that do not draw sinusoidal current, and therefore, are not as kind to harmonics.